... it's quite clear from the polling that most conservative evangelical Christians like the libertine, gutter-snipe Donald Trump even more than the rest of the Republican Party. They are the strongest pillar of his following. So attempting to pry them loose with appeals to decency is a waste of breath.
The implication here is they're all evil assholes. But having been raised religious, having been a member at an evangelical church and then snapping out of it, another explanation fits for many of them.
I think the main issue here is the most zealous Christians are so because they have been isolated, trained, and brainwashed into thinking superstitiously over years, even decades. They follow faith rather than fact. They are trained to demonize others and ignore other points of view as evil. Many have been convinced to believe that those outside the church are minions of Satan and so of course they're not going to vote for Democrats.
As a result, they're either not going to hear the truth about DT or if they do, they will wave it off as "SaTan'S LiEs". When you base your knowledge on faith rather than good evidence, you can be led to believe literally anything. Such as: "DT is announced by God to lead the nation and fight against the evil baby sacrificing Democrats"